SCIENCE
BOTANY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -2: A leaf is usually composed of a blade and a petiole. The blade is most frequently the flat, photosynthetic part. The petiole is a stem that attaches the leaf blade to the main stem of the plant.
Detailed explanation-2: -Each leaf typically has a leaf blade called the lamina, which is also the widest part of the leaf. Some leaves are attached to the plant stem by a petiole. Leaves that do not have a petiole and are directly attached to the plant stem are called sessile leaves.
Detailed explanation-3: -Leaves are constructed of three major parts: the petiole, the base, and the blade (Figure 1A). Generally, the largest portion of the leaf is the blade. The base is the region of the blade that attaches to the petiole, a stalk-like structure that connects the blade of the leaf to the stem of the plant.
Detailed explanation-4: -Petioles, stipules, veins, and a midrib are all essential structures of a leaf. Within each leaf, the vascular tissue forms veins. The arrangement of veins in a leaf is called the venation pattern.